CN104928493A - Method of adopting oxygen-enriched vortex bath smelting furnace to treat secondary copper-containing sundry - Google Patents
Method of adopting oxygen-enriched vortex bath smelting furnace to treat secondary copper-containing sundry Download PDFInfo
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- CN104928493A CN104928493A CN201510373901.XA CN201510373901A CN104928493A CN 104928493 A CN104928493 A CN 104928493A CN 201510373901 A CN201510373901 A CN 201510373901A CN 104928493 A CN104928493 A CN 104928493A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a method of adopting an oxygen-enriched vortex bath smelting furnace to treat secondary copper-containing sundry. The oxygen-enriched vortex bath smelting furnace comprises a furnace body and multiple spray guns, a furnace cavity is arranged in the furnace body which is provided with a feeding port, a smoke outlet, a slag outlet and a discharging port, the furnace cavity has a round cross section, multiple spray gun inserting holes which are distributed along the peripheral direction of the furnace body at intervals, and the spray guns are inserted into the spray gun inserting holes and deviate from the circle center of the round cross section of the furnace cavity along a same direction. The method includes the following steps: feeding the secondary copper-containing sundry into the furnace cavity through the feeding port; adopting the spray guns to spray a fuel medium and a reducing agent into the furnace cavity enable the secondary copper-containing sundry to react in the furnace cavity to generate copper slag, metal copper and smoke; discharging the copper slag from the slag outlet, discharging the metal copper from the discharging port, and discharging the smoke from the smoke outlet. The method has the advantages of low energy consumption and good smelting effect.
Description
Technical field
The present invention relates to a kind of nonferrous metallurgy method, relate to particularly a kind of adopt oxygen enrichment vortex bath smelting furnace process secondary cupric mix material method.
Background technology
China is the relatively poor country of copper resource and first country of consumption in the world.The copper real consumption amount of China in 2014 is 1,000 ten thousand according to statistics, accounts for more than 1/4 of global copper ultimate production.And the turnout of internal copper is less than 8,000,000 tons (comprising reclaimed copper), internal copper breach reaches 25%.Utilize copper secondary material material to produce the domestic metallurgic product in short supply such as blister copper or anode copper, be one and meet environmental requirement, meet again the road of the utilization of resources of CHINESE INDUSTRIES policy.From the secondary material of copper, extracting copper, both protected environment, produce again the strategic resource that country is in short supply, is one of Important Action carrying out the strategy of sustainable development.Not only can alleviate environmental pollution, realize cleaner production, and significant ecological and economic benefit will be had.The industrial structure of adjustment and improvement locality is played an important role simultaneously.
Current secondary copper material main flow treatment process carries out bath smelting for adopting tilting furnace, top blast stove etc., but the investment of these smelting technologyes is larger, a lot of area all adopts traditional smelting technology such as blast furnace or reverberatory furnace to smelt, but traditional technology energy consumption is high, environmental pollution is serious, level of automation is low, be difficult to environmental requirement and the entry criteria of satisfied national increasingly stringent, be substantially eliminated.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention propose a kind of adopt oxygen enrichment vortex bath smelting furnace process secondary cupric mix material method, there is the advantage that energy consumption is low, Smelting Effect is good.
According to the employing oxygen enrichment vortex bath smelting furnace process secondary cupric of the embodiment of the present invention mix material method, described oxygen enrichment vortex bath smelting furnace comprises: body of heater and multiple spray gun, in described body of heater, there is furnace chamber, described body of heater has charging opening, exhanst gas outlet, slag notch and escape orifice, described furnace chamber has circular cross section, and the sidewall of described body of heater is provided with along the circumference of described body of heater multiple spray gun jacks spaced apart; Described spray gun is inserted in described spray gun jack and multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber in the same direction; Described method comprises the steps: assorted for secondary cupric material and reductive agent to drop into described furnace chamber by described charging opening; Adopt described spray gun to be injected in described furnace chamber by fuel medium and reductive agent, the assorted material of described secondary cupric reacts to generate copper ashes, metallic copper and flue gas in described furnace chamber; Described copper ashes is discharged from described slag notch, and described metallic copper is discharged from described escape orifice, and described flue gas is discharged from described exhanst gas outlet.
According to the employing oxygen enrichment vortex bath smelting furnace process secondary cupric of the embodiment of the present invention mix material method, energy consumption is low, and Smelting Effect is good, specific capacity is high, operational use time and the operation life of body of heater are long, are conducive to reducing body of heater height, reduce body of heater and build difficulty and laid down cost.
In some embodiments of the invention, to depart from the angle in the center of circle of the circular cross section of described furnace chamber identical for the blowing direction of multiple described spray gun.
In a particular embodiment of the present invention, the angle between the center of circle of the winding-up end of described spray gun and the circular cross section of described furnace chamber between line and the blowing direction of this spray gun is in the scope of 5-60 degree.
Preferably, described multiple spray gun is evenly arranged along the circumference of described furnace chamber.
In some embodiments of the invention, described body of heater is provided with overfiren air port, and the air outside described body of heater enters in described furnace chamber from described overfiren air port.
Preferably, the winding-up end of described spray gun extend in the molten bath of described furnace chamber bottom.
According to some embodiments of the present invention, described spray gun dips down relative to horizontal direction and tiltedly arranges.
In a preferred embodiment of the invention, the bottom surface of described furnace chamber is segment-shaped.
In some embodiments of the invention, described body of heater comprises roof, sidewall and is positioned at the cupola well of bottom, and the flame retardant coating of described sidewall and described cupola well is magnesia chrome brick layer, and the flame retardant coating of described roof is the refractory steel fiber ramming bed of material or described roof is membrane wall.
Further, the outside of the flame retardant coating of described sidewall is provided with copper water jacket.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional schematic of the oxygen enrichment vortex bath smelting furnace according to the embodiment of the present invention.
Fig. 2 is the cross sectional representation of the oxygen enrichment vortex bath smelting furnace according to the embodiment of the present invention.
Reference numeral:
Oxygen enrichment vortex bath smelting furnace 100, body of heater 1, furnace chamber 10, roof 11, sidewall 12, cupola well 13, escape orifice 14, slag notch 15, charging opening 16, exhanst gas outlet 17, insulation burner mouth 18, visit cinder notch 19,
Spray gun 2, copper water jacket 3, skirt 4, body of heater basis 5, pre-embedded bolt 6.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Describe in detail below with reference to Fig. 1 and Fig. 2 and process secondary cupric according to the employing oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention and to mix the method for material, wherein secondary cupric mix material can for copper scap etc.
According to the oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention, comprise: body of heater 1 and multiple spray gun 2, wherein have furnace chamber 10 in body of heater 1, furnace chamber 10 has circular cross section, when oxygen enrichment vortex bath smelting furnace 100 works, be contained with melt in furnace chamber 10 to form molten bath.
The sidewall 12 of body of heater 1 is provided with along the circumference of body of heater 1 multiple spray gun jacks spaced apart.Particularly, body of heater 1 comprises roof 11, sidewall 12 and is positioned at the cupola well 13 of diapire, and cupola well 13 and the sidewall 12 of body of heater 1 have flame retardant coating respectively, and flame retardant coating can be piled up by refractory brick and form.Thus being formed as circular due to the cross section of furnace chamber 10, body of heater 1 expands when being heated evenly, does not have area of stress concentration, can avoid occurring falling brick phenomenon, the stability of raising body of heater 1, the normal use of guarantee oxygen enrichment vortex bath smelting furnace 100.
In concrete example of the present invention, the sidewall 12 of body of heater 1 and the flame retardant coating of cupola well 13 are magnesia chrome brick layer, and the flame retardant coating of the roof 11 of body of heater 1 is the refractory steel fiber ramming bed of material or roof 11 is membrane wall.
Spray gun 2 is inserted in spray gun jack and multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 in the same direction.Preferably, multiple spray gun 2 is evenly arranged along the circumference of furnace chamber 10.The center of circle that wherein each spray gun 2 departs from the circular cross section of furnace chamber 10 refers between line L1 between the center of circle of the winding-up end of spray gun 2 and the circular cross section of the furnace chamber 10 and emission direction A of spray gun 2 has angle theta, in other words, the emission direction of each spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10, and each spray gun 2 sprays medium with the direction that the center of circle of the circular cross section with furnace chamber 10 is angled.The center of circle that the multiple spray guns 2 simultaneously described in the present invention depart from the circular cross section of furnace chamber 10 in the same direction refers to multiple spray gun 2 and to depart from along clockwise direction or multiple spray gun 2 departs from the counterclockwise direction.
Body of heater 1 is also provided with charging opening 16, slag notch 15, exhanst gas outlet 17 and escape orifice 14, charging opening 16 and exhanst gas outlet 17 can be located on the roof 11 of body of heater 1, and slag notch 15 can be located on the sidewall 12 of body of heater 1.
In concrete example of the present invention, the height of body of heater 1 is about 4 ~ 15m, and the internal diameter of furnace chamber 10 is 1 ~ 8m, and each spray gun 2 is 1 ~ 2m with the distance of furnace bottom.
According to the employing oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention process secondary cupric mix material method, comprise the steps:
Assorted for secondary cupric material and reductive agent are dropped into furnace chamber by charging opening;
Adopt spray gun to be injected in furnace chamber by fuel medium and reductive agent, the assorted material of secondary cupric reacts to generate copper ashes, metallic copper and flue gas in furnace chamber; Copper ashes is discharged from slag notch, and metallic copper is discharged from escape orifice, and flue gas is discharged from exhanst gas outlet.
Specifically, material and secondary cupric material of mixing can pass through automatic batching system, join in furnace chamber 10 by charging opening 16, fuel medium and reductive agent such as Sweet natural gas, producer gas, coke-oven gas or fine coal are injected in furnace chamber and carry out combustion heat release by spray gun 2, can allocate reductive agent such as a small amount of lump coal into for controlling stove internal oxidition reduction atmosphere from charging opening 16, bath temperature can adjust and control at 1200 ~ 1400 DEG C simultaneously.
Because multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 in the same direction, therefore, it is possible to make to produce certain limit in furnace chamber 10 to horizontally rotate region, thus make the melt composition vortex motion in furnace chamber 10, that is, molten bath horizontally rotates while stirring up and down, molten bath forms whirlpool region, rapidly assorted for secondary cupric material and reductive agent are rolled in molten bath and fusing and reduction reaction occur, particularly all spray guns 2 spray into furnace heat and converge at central zone in stove, secondary cupric mix material burn-off rate accelerate.
The copper ashes that fusing and preliminary reduction reaction generate is discharged from slag notch 15, and the flue gas that reaction generates is discharged from exhanst gas outlet 17.Metallic copper is discharged by escape orifice 14.
The flue gas of wherein discharging from exhanst gas outlet 17 can enter into waste heat boiler recovery waste heat, and gathering dust through electricity or showing cold sending causes acid system.
Process secondary cupric according to the employing oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention to mix the method for material, by adopting oxygen enrichment vortex bath smelting furnace 100, tool has the following advantages:
1) because multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 in the same direction, therefore, it is possible to make to produce certain limit in furnace chamber 10 to horizontally rotate region, thus make the melt composition vortex motion in furnace chamber 10, the assorted material of the secondary cupric added and reductive agent can be involved in melt rapidly, abundant participation reaction, energy consumption is low, and Smelting Effect is good, can improve the processing power of body of heater 1.
2) compared with side-blown converter, multiple spray gun 2 all points to the central zone of furnace chamber 10, higher temperature can be produced at furnace chamber 10 center, be conducive to material to melt rapidly, greatly improve specific capacity, wherein specific capacity refers to every square meter hearth area and processes how many tons of materials every day, general side-blown converter 25 tons of/day square meters, and the bath smelting furnace 100 in the present invention can reach 25 ~ 80 tons of/day square meters.
3) compared with side-blown converter, the cross section of furnace chamber 10 is formed as circular, the stress ratio that in furnace chamber 10, refractory brick bears can be made comparatively even, greatly avoid arch brick, fall brick phenomenon, substantially prolongs body of heater 1 operational use time and operation life.
4) compared with top blast stove, multiple spray gun 2 disperses winding-up that melt in furnace chamber 10 can be avoided to produce too violent seething, and prevents splash, and is conducive to reducing body of heater 1 height, reduces body of heater 1 and builds difficulty and laid down cost.
In brief, according to the employing oxygen enrichment vortex bath smelting furnace 100 of the embodiment of the present invention process secondary cupric mix material method, energy consumption is low, Smelting Effect is good, specific capacity is high, operational use time and the operation life of body of heater 1 are long, are conducive to reducing body of heater 1 height, reduce body of heater 1 and build difficulty and laid down cost.
Preferably, body of heater 1 is provided with overfiren air port (scheming not shown), and the air outside body of heater 1 enters in furnace chamber 10 from overfiren air port.Thus by being provided with overfiren air port, being conducive to burning again of inflammable gas carbon monoxide in stove or hydrogen, the abundant after-flame of inflammable gas produced in stove can being made, and then can environmental be reduced.
In concrete example of the present invention, the winding-up end of spray gun 2 extend in the molten bath of furnace chamber 10 bottom.Such as the winding-up end of each spray gun 2 can be immersed in 0.5 ~ 1.5m under molten bath, thus can ensure that molten bath can be formed with whirlpool region further.
According to some embodiments of the present invention, the angle that the blowing direction of multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 is identical.Thus ensure that the melt in furnace chamber 10 can form vortex motion further.Particularly, the angle theta between the center of circle of the winding-up end of spray gun 2 and the circular cross section of furnace chamber 10 between line L1 and the blowing direction A of this spray gun 2 is in the scope of 5-60 degree.Preferably, angle theta is 15 degree.
In some embodiments of the invention, angle theta is adjustable.That is, the deflection angle of each spray gun 2 is adjustable.Wherein by the angle of change spray gun jack and the deflection angle of each spray gun 2 of adjustable.Particularly, each spray gun jack can be located on one block of insulating brick, and the insulating brick being provided with spray gun jack is called muzzle brick, in actual production process, if need the deflection angle adjusting spray gun 2, only needs the muzzle brick changing corresponding position.Thus due to angle adjustable, according to the change of the purposes of body of heater 1 or material change adjustment winding-up angle, body of heater 1 can be run under optimum working parameter, adds the scope of application and the production chains of body of heater 1.
As shown in Figure 2, according to a particular embodiment of the invention, each spray gun 2 dips down relative to horizontal direction and tiltedly arranges.That is, each spray gun jack downward-sloping extension on direction from outside to inside.Thus by making the downward-sloping setting of each spray gun 2, certain effect of seething up and down can also be caused, be conducive to melt in furnace chamber 10 and react more fast, fully, the processing power of body of heater 1 can be improved further.
In some embodiments of the invention, as shown in Figure 2, the bottom surface of furnace chamber 10 is segment-shaped.That is, the bottom surface of furnace chamber 10 is formed as recessed segment-shaped downwards.Thus the stress ratio that the furnace bottom of segment-shaped makes refractory brick in stove bear is comparatively even, greatly avoids arch brick, falls brick phenomenon, substantially prolongs body of heater 1 operational use time and operation life.
As depicted in figs. 1 and 2, according to some embodiments of the present invention, the outside of the flame retardant coating of sidewall 12 is provided with copper water jacket 3.By being provided with copper water jacket 3, the temperature of the flame retardant coating of the sidewall 12 of body of heater 1 can be reduced, extending the work-ing life of the flame retardant coating of the sidewall 12 of body of heater 1, thus extend the work-ing life of body of heater 1.
In the figure 2 example, body of heater 1 also comprises skirt 4 and body of heater basis 5, and skirt 4 is connected with the pre-embedded bolt 6 on body of heater basis 5, and body of heater 1 is fixed on skirt 4, thus when effectively can prevent bath smelting body of heater 1 displacement and rock.
As shown in Figure 2, the roof 11 of body of heater 1 is also provided with and visits cinder notch 19 and insulation burner mouth 18, visiting cinder notch 19 is thief hatch, and insulation burner mouth 18 is for installing insulation burner.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. one kind adopt oxygen enrichment vortex bath smelting furnace process secondary cupric mix material method, it is characterized in that, described oxygen enrichment vortex bath smelting furnace comprises: body of heater and multiple spray gun, in described body of heater, there is furnace chamber, described body of heater has charging opening, exhanst gas outlet, slag notch and escape orifice, described furnace chamber has circular cross section, and the sidewall of described body of heater is provided with along the circumference of described body of heater multiple spray gun jacks spaced apart; Described spray gun is inserted in described spray gun jack and multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber in the same direction;
Described method comprises the steps:
Assorted for secondary cupric material is dropped into described furnace chamber by described charging opening;
Adopt described spray gun to be injected in described furnace chamber by fuel medium and reductive agent, the assorted material of described secondary cupric reacts to generate copper ashes, metallic copper and flue gas in described furnace chamber; Described copper ashes is discharged from described slag notch, and described metallic copper is discharged from described escape orifice, and described flue gas is discharged from described exhanst gas outlet.
2. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 1 is mixed the method for material, and it is characterized in that, the angle that the blowing direction of multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber is identical.
3. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 1 mix material method, it is characterized in that, the angle between the center of circle of the winding-up end of described spray gun and the circular cross section of described furnace chamber between line and the blowing direction of this spray gun is in the scope of 5-60 degree.
4. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 1 mix material method, it is characterized in that, described multiple spray gun is evenly arranged along the circumference of described furnace chamber.
5. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 1 mix material method, it is characterized in that, described body of heater is provided with overfiren air port, and the air outside described body of heater enters in described furnace chamber from described overfiren air port.
6. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 1 mix material method, it is characterized in that, the winding-up end of described spray gun extend in the molten bath of described furnace chamber bottom.
7. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 1 mix material method, it is characterized in that, described spray gun dips down relative to horizontal direction and tiltedly arranges.
8. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 1 mix material method, it is characterized in that, the bottom surface of described furnace chamber is segment-shaped.
9. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 1 mix material method, it is characterized in that, described body of heater comprises roof, sidewall and is positioned at the cupola well of bottom, the flame retardant coating of described sidewall and described cupola well is magnesia chrome brick layer, and the flame retardant coating of described roof is the refractory steel fiber ramming bed of material or described roof is membrane wall.
10. employing oxygen enrichment vortex bath smelting furnace process secondary cupric according to claim 9 mix material method, it is characterized in that, the outside of the flame retardant coating of described sidewall is provided with copper water jacket.
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| CN201510373901.XA CN104928493A (en) | 2015-06-30 | 2015-06-30 | Method of adopting oxygen-enriched vortex bath smelting furnace to treat secondary copper-containing sundry |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107502754A (en) * | 2017-08-29 | 2017-12-22 | 营口盛海化工有限公司 | A kind of production method of blister copper |
| CN111850308A (en) * | 2020-07-22 | 2020-10-30 | 湖北大江环保科技股份有限公司 | Method for treating copper smoke dust by using oxygen-enriched side-blown reduction smelting furnace |
| DE102020215140A1 (en) | 2020-12-01 | 2022-06-02 | Sms Group Gmbh | Process and melting unit for pyrometallurgical melting of raw materials containing metal, residues and/or secondary residues |
| DE102020215147A1 (en) | 2020-12-01 | 2022-06-02 | Sms Group Gmbh | Process for the pyrometallurgical melting down of raw materials containing metal, residues and/or secondary residues |
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| CN1594614A (en) * | 2004-06-29 | 2005-03-16 | 河南豫光金铅股份有限公司 | Direct reduction process for liquid high lead skim of oxygen bottom blowing furnace and special reducing furnace |
| CN201634742U (en) * | 2010-03-18 | 2010-11-17 | 新乡县中联金铅有限公司 | Oxygen side blown metal melting reduction furnace |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1594614A (en) * | 2004-06-29 | 2005-03-16 | 河南豫光金铅股份有限公司 | Direct reduction process for liquid high lead skim of oxygen bottom blowing furnace and special reducing furnace |
| CN201634742U (en) * | 2010-03-18 | 2010-11-17 | 新乡县中联金铅有限公司 | Oxygen side blown metal melting reduction furnace |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107502754A (en) * | 2017-08-29 | 2017-12-22 | 营口盛海化工有限公司 | A kind of production method of blister copper |
| CN107502754B (en) * | 2017-08-29 | 2020-06-23 | 营口盛海化工有限公司 | Production method of blister copper |
| CN111850308A (en) * | 2020-07-22 | 2020-10-30 | 湖北大江环保科技股份有限公司 | Method for treating copper smoke dust by using oxygen-enriched side-blown reduction smelting furnace |
| CN111850308B (en) * | 2020-07-22 | 2021-04-16 | 湖北大江环保科技股份有限公司 | Method for treating copper smoke dust by using oxygen-enriched side-blown reduction smelting furnace |
| DE102020215140A1 (en) | 2020-12-01 | 2022-06-02 | Sms Group Gmbh | Process and melting unit for pyrometallurgical melting of raw materials containing metal, residues and/or secondary residues |
| DE102020215147A1 (en) | 2020-12-01 | 2022-06-02 | Sms Group Gmbh | Process for the pyrometallurgical melting down of raw materials containing metal, residues and/or secondary residues |
| WO2022117558A1 (en) | 2020-12-01 | 2022-06-09 | Sms Group Gmbh | Method and smelting unit for pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials |
| WO2022117585A1 (en) | 2020-12-01 | 2022-06-09 | Sms Group Gmbh | Method for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials |
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